int i;
int j;
int k;
- int axis = node->plane->type;
const msurface_t *surface;
float normal[3];
float v0[3];
surface = model->data_surfaces + node->firstsurface;
for (i = 0;i < node->numsurfaces;i++, surface++)
{
- if (axis < 3)
- {
- if (mid[axis] < surface->mins[axis] || mid[axis] > surface->maxs[axis])
- continue;
- }
- else
- {
- if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
- continue;
- }
+ // skip surfaces whose bounding box does not include the point
+// if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
+// continue;
+ // skip faces with contents we don't care about
if (!(t->trace->hitsupercontentsmask & surface->texture->supercontents))
continue;
+ // get the surface normal - since it is flat we know any vertex normal will suffice
VectorCopy(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex, normal);
- //VectorCopy(node->plane->normal, normal);
+ // skip backfaces
+ if (DotProduct(t->dist, normal) > 0)
+ continue;
+ // iterate edges and see if the point is outside one of them
for (j = 0, k = surface->num_vertices - 1;j < surface->num_vertices;k = j, j++)
{
VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + k), v0);
if (DotProduct(edgenormal, p) > DotProduct(edgenormal, v0))
break;
}
+ // if the point is outside one of the edges, it is not within the surface
if (j < surface->num_vertices)
continue;
const bih_node_t *node;
const colbrushf_t *brush;
int axis;
- while (nodenum >= 0)
+ for(;;)
{
node = model->collision_bih.nodes + nodenum;
+#if 1
+ if (!BoxesOverlap(point, point, node->mins, node->maxs))
+ return;
+#endif
+ if (node->type == BIH_UNORDERED)
+ {
+ for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
+ {
+ leaf = model->collision_bih.leafs + node->children[axis];
+#if 1
+ if (!BoxesOverlap(point, point, leaf->mins, leaf->maxs))
+ continue;
+#endif
+ switch(leaf->type)
+ {
+ case BIH_BRUSH:
+ brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
+ Collision_TracePointBrushFloat(trace, point, brush);
+ break;
+ case BIH_COLLISIONTRIANGLE:
+ // collision triangle - skipped because they have no volume
+ break;
+ case BIH_RENDERTRIANGLE:
+ // render triangle - skipped because they have no volume
+ break;
+ }
+ }
+ return;
+ }
axis = node->type - BIH_SPLITX;
if (point[axis] <= node->backmax)
{
else // no overlap with either child? just return
return;
}
- if (!model->collision_bih.leafs)
- return;
- leaf = model->collision_bih.leafs + (-1-nodenum);
- switch(leaf->type)
- {
- case BIH_BRUSH:
- brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
- Collision_TracePointBrushFloat(trace, point, brush);
- break;
- case BIH_COLLISIONTRIANGLE:
- // collision triangle - skipped because they have no volume
- break;
- case BIH_RENDERTRIANGLE:
- // render triangle - skipped because they have no volume
- break;
- }
}
static void Mod_CollisionBIH_TraceLine_RecursiveBIHNode(trace_t *trace, dp_model_t *model, bih_t *bih, int nodenum, const vec3_t start, const vec3_t end, const vec3_t linestart, const vec3_t lineend)
segmentmaxs[0] = max(start[0], end[0]);
segmentmaxs[1] = max(start[1], end[1]);
segmentmaxs[2] = max(start[2], end[2]);
- while (nodenum >= 0)
+ for (;;)
{
node = bih->nodes + nodenum;
-#if 0
+#if 1
if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
return;
#endif
+ if (node->type == BIH_UNORDERED)
+ {
+ for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
+ {
+ leaf = model->collision_bih.leafs + node->children[axis];
+#if 1
+ if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
+ continue;
+#endif
+ switch(leaf->type)
+ {
+ case BIH_BRUSH:
+ brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
+ Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
+ break;
+ case BIH_COLLISIONTRIANGLE:
+ if (!mod_q3bsp_curves_collisions.integer)
+ continue;
+ e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
+ texture = model->data_textures + leaf->textureindex;
+ Collision_TraceLineTriangleFloat(trace, linestart, lineend, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
+ break;
+ case BIH_RENDERTRIANGLE:
+ e = model->surfmesh.data_element3i + 3*leaf->itemindex;
+ texture = model->data_textures + leaf->textureindex;
+ Collision_TraceLineTriangleFloat(trace, linestart, lineend, model->surfmesh.data_vertex3f + e[0] * 3, model->surfmesh.data_vertex3f + e[1] * 3, model->surfmesh.data_vertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
+ break;
+ }
+ }
+ return;
+ }
axis = node->type - BIH_SPLITX;
#if 0
if (segmentmins[axis] <= node->backmax)
#endif
#endif
}
- if (!bih->leafs)
- return;
- leaf = bih->leafs + (-1-nodenum);
-#if 1
- if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
- return;
-#endif
- switch(leaf->type)
- {
- case BIH_BRUSH:
- brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
- Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
- break;
- case BIH_COLLISIONTRIANGLE:
- if (!mod_q3bsp_curves_collisions.integer)
- return;
- e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
- texture = model->data_textures + leaf->textureindex;
- Collision_TraceLineTriangleFloat(trace, linestart, lineend, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
- break;
- case BIH_RENDERTRIANGLE:
- e = model->surfmesh.data_element3i + 3*leaf->itemindex;
- texture = model->data_textures + leaf->textureindex;
- Collision_TraceLineTriangleFloat(trace, linestart, lineend, model->surfmesh.data_vertex3f + e[0] * 3, model->surfmesh.data_vertex3f + e[1] * 3, model->surfmesh.data_vertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
- break;
- }
}
static void Mod_CollisionBIH_TraceBrush_RecursiveBIHNode(trace_t *trace, dp_model_t *model, int nodenum, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const vec3_t segmentmins, const vec3_t segmentmaxs)
const int *e;
const texture_t *texture;
int axis;
- while (nodenum >= 0)
+ for(;;)
{
node = model->collision_bih.nodes + nodenum;
+ if (node->type == BIH_UNORDERED)
+ {
+ for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
+ {
+ leaf = model->collision_bih.leafs + node->children[axis];
+#if 1
+ if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
+ continue;
+#endif
+ switch(leaf->type)
+ {
+ case BIH_BRUSH:
+ brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
+ Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
+ break;
+ case BIH_COLLISIONTRIANGLE:
+ if (!mod_q3bsp_curves_collisions.integer)
+ continue;
+ e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
+ texture = model->data_textures + leaf->textureindex;
+ Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
+ break;
+ case BIH_RENDERTRIANGLE:
+ e = model->surfmesh.data_element3i + 3*leaf->itemindex;
+ texture = model->data_textures + leaf->textureindex;
+ Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->surfmesh.data_vertex3f + e[0] * 3, model->surfmesh.data_vertex3f + e[1] * 3, model->surfmesh.data_vertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
+ break;
+ }
+ }
+ return;
+ }
axis = node->type - BIH_SPLITX;
#if 1
if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
else
return; // trace falls between children
}
- if (!model->collision_bih.leafs)
- return;
- leaf = model->collision_bih.leafs + (-1-nodenum);
-#if 1
- if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
- return;
-#endif
- switch(leaf->type)
- {
- case BIH_BRUSH:
- brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
- Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
- break;
- case BIH_COLLISIONTRIANGLE:
- if (!mod_q3bsp_curves_collisions.integer)
- return;
- e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
- texture = model->data_textures + leaf->textureindex;
- Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
- break;
- case BIH_RENDERTRIANGLE:
- e = model->surfmesh.data_element3i + 3*leaf->itemindex;
- texture = model->data_textures + leaf->textureindex;
- Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->surfmesh.data_vertex3f + e[0] * 3, model->surfmesh.data_vertex3f + e[1] * 3, model->surfmesh.data_vertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
- break;
- }
}
void Mod_CollisionBIH_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
}
// allocate buffers for the produced and temporary data
- bihmaxnodes = bihnumleafs - 1;
+ bihmaxnodes = bihnumleafs + 1;
bihnodes = (bih_node_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_node_t) * bihmaxnodes);
temp_leafsort = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * bihnumleafs * 2);
temp_leafsortscratch = temp_leafsort + bihnumleafs;
mod->TraceLine = Mod_Q3BSP_TraceLine;
mod->TracePoint = Mod_Q3BSP_TracePoint;
mod->PointSuperContents = Mod_Q3BSP_PointSuperContents;
- mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
+ mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
loadmodel->TraceBrush = Mod_CollisionBIH_TraceBrush;
loadmodel->TraceLine = Mod_CollisionBIH_TraceLine;
loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
- loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
+ loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
loadmodel->brush.TraceLineOfSight = NULL;
loadmodel->brush.SuperContentsFromNativeContents = NULL;
projects / xonotic / darkplaces.git / blobdiff